/**
 * #      1621
 * 名称   大小为 K 的不重叠线段的数目
 * 链接   https://leetcode-cn.com/problems/number-of-sets-of-k-non-overlapping-line-segments
 * 题解   [27](https://leetcode-cn.com/problems/number-of-sets-of-k-non-overlapping-line-segments/solution)
 * 通过率 43.2%
 * 难道   中等
 */

